Strain relief



FIG. 1 is a perspective view of the first embodiment of the ornamental design for the strain relief;

FIG. 2 is a front view of the first embodiment of the ornamental design for the strain relief;

FIG. 3 is a side view of the first embodiment of the ornamental design for the strain relief;

FIG. 4 is a rear view of the first embodiment of the ornamental design for the strain relief;

FIG. 5 is a top view of the first embodiment of the ornamental design for the strain relief;

FIG. 6 is a bottom view of the first embodiment of the ornamental design for the strain relief;

FIG. 7 is a perspective view of the first embodiment of the ornamental design for the strain relief shown in unclaimed environment;

FIG. 8 is a perspective view of the second embodiment of the ornamental design for the strain relief;

FIG. 9 is a front view of the second embodiment of the ornamental design for the strain relief;

FIG. 10 is a side view of the second embodiment of the ornamental design for the strain relief;

FIG. 11 is a rear view of the second embodiment of the ornamental design for the strain relief;

FIG. 12 is a top view of the second embodiment of the ornamental design for the strain relief;

FIG. 13 is a bottom view of the second embodiment of the ornamental design for the strain relief; and,

FIG. 14 is a perspective view of the first embodiment of the ornamental design for the strain relief shown in unclaimed environment.

The broken lines shown in FIGS. 7 and 14 illustrate environment only and form no part of the claimed design. 

CLAIM The ornamental design for a strain relief, as shown and described. 